Straw press



June 7, 1927.

J. F. MURRAY STRAW PRESS Filed April 9', 1926 WITNEiS v ATTO R N EYPatented June 7, 1927.

UNITED STATES PATENT. OFFICE.

JOHN F. MURRAY, OF OTTERBEIN, INDIANA, ASSIGNOROF ONE-HALF TO WALTERIRVIN, 0F OTTERBEIN, INDIANA. v

STRAW PRESS.

Application filed April 9, 1926. Serial No. 100,948.

This invention relates to a straw press, the general object of theinvention being to provide means for applying pressure to one end of thepress to contract the same so that the press can be quickly changed tosuit the different kinds of material for which it is being used. a

This invention also consists in certain other features of constructionand in the combination and arrangement of the several parts, to behereinafter fully described, illustrated in the accompanying drawingsand specifically pointed out in the appended claim.

In describing my invention in detail, reference will be had to theaccompanying drawing wherein the figure shows a perspective view of apressing chamber constructed in accordance with my invention.

As shown in this View, I arrange four channel beams 1, 2, 8 and I at theend of the press, two of the beams being arranged at the sides and theother two at the top and bottom. A presser plate 5 is connected witheach side beam and a bridge piece 6 is placed on the top beam. Each endof each of the top and bottom beams is connected by a pair of links 7with the adjacent end of a side beam and eye bolts 8 have their eyesengaging a bolt 9 arranged at the center of the bottom beam 1, with thethreaded ends passing through the side beams where they receive the nuts10. This permits the side beams to be adjusted in relation to the bottombeam.

A lever 11 is pivoted to the bridge piece 6, as shown at 12, and a rod13 connects the end of said lever with the upper end of the side beam 3and a similar rod 16 connects the lever to the upper end of the sidebeam 4, the inner ends of the rods 15 and 16 being connected with thelever at opposite sides of the pivot 12. The usual means are providedfor holding the lever in adjusted position, such means being showngenerally at 17.

From the foregoing, it will be seen that when the end of the pressingchamber is to be contracted, it is simply necessary to move the lever 11so as to cause the beams 3 and 4 to move toward each other, which actionwill cause the beams 1 and 2 to move to-' In a pressing chamber of abaling ma chine, channel beams at the sides, top and bottom of saidchamber at one end thereof, links pivotally connecting the ends of saidbeams together, presser plates carried by the side beams, a bridge piececarried by the top beam, means adjustably connecting the lower ends ofthe side beams for moving the ends thereof toward and away from eachother, an operating lever pivoted at one end to the bridge piece,connecting rods having their outer ends adjustably connected to theupper ends of the side beams and their inner ends connected to the leverat opposite sides of the pivot point whereby lateral movement of saidlever will move the upper ends of said side beams toward and away fromeach other and means for holding said lever in adjusted positions.

In testimony whereof I affii: my signature.

JOHN F. MURRAY.

